Azure Custom Controller / API .Net backend

I have had a MobileService running on Azure, and have decided to create a new service and migrate the code myself. The new service is of the new type called: Azure Mobile App Service.

Currently I have Authentication working, and can do migrations/update-database. I am following the TodoItem example. I now want to create my own Custom API, which easily worked on MobileService, but I cannot get it working on Azure Mobile App :/

This is a new controller and not the one that comes with it as lidydonna used. It seemed like it wants both functions get and post. This resulted in the API was registered and could be accessed. This means the client call to the server I used was: